Move the -indvars pass much later to where it is more likely to do good stuff

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8470 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/tools/gccas/gccas.cpp b/tools/gccas/gccas.cpp
index 8f0b77bac9c3c26a5ce87c92c3adc985bf518032..5ba382eaa9e9677aafb488efebaad083f3994686 100644 (file)
--- a/tools/gccas/gccas.cpp
+++ b/tools/gccas/gccas.cpp
@@ -60,7 +60,6 @@ void AddConfiguredTransformationPasses(PassManager &PM) {
   addPass(PM, createInstructionCombiningPass()); // Combine silly seq's
 
 
-  addPass(PM, createIndVarSimplifyPass());       // Simplify indvars
   addPass(PM, createReassociatePass());          // Reassociate expressions
   addPass(PM, createInstructionCombiningPass()); // Combine silly seq's
   addPass(PM, createCFGSimplificationPass());    // Merge & remove BBs
@@ -72,6 +71,7 @@ void AddConfiguredTransformationPasses(PassManager &PM) {
   // Run instcombine after redundancy elimination to exploit opportunities
   // opened up by them.
   addPass(PM, createInstructionCombiningPass());
+  addPass(PM, createIndVarSimplifyPass());       // Canonicalize indvars
   addPass(PM, createAggressiveDCEPass());        // SSA based 'Aggressive DCE'
   addPass(PM, createCFGSimplificationPass());    // Merge & remove BBs
   addPass(PM, createDeadTypeEliminationPass());  // Eliminate dead types